/*******************************************************************************
 * Copyright (c) 2001, 2002 Boris Pruessmann and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Common Public License v0.5
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v05.html
 * 
 * Contributors:
 *    Boris Pruessmann - Initial implementation.
 ******************************************************************************/
package net.sourceforge.perforce.ui.action;

import java.lang.reflect.InvocationTargetException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import net.sourceforge.perforce.core.PerforceCorePlugin;
import net.sourceforge.perforce.core.PerforceException;
import net.sourceforge.perforce.core.PerforceSynchronizer;
import net.sourceforge.perforce.core.internal.P4TeamProvider;
import net.sourceforge.perforce.ui.PerforceUIPlugin;
import net.sourceforge.perforce.ui.internal.Policy;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.jface.action.IAction;
import org.eclipse.team.core.RepositoryProvider;
import org.eclipse.team.core.TeamException;
import org.eclipse.ui.actions.WorkspaceModifyOperation;

/**
  * @version 	$Revision: 249 $
  * @author		<a href="mailto:bpruessmann@users.sourceforge.net">Boris Pruessmann</a>
  */
public class SyncToHeadAction extends PerforceAction
{
	// ------------------------------------------------------------------------------ Public Methods
	
	/** @see IActionDelegate#run(IAction) */
	public void run(IAction action)
	{
		run(new WorkspaceModifyOperation()
		{
			public void execute(IProgressMonitor monitor) 
				throws InterruptedException, InvocationTargetException 
			{
				try
				{
					PerforceSynchronizer.getInstance().beginOperation(monitor);
					
					Map map = getProviderMapping();
					Set keySet = map.keySet();
					
					monitor.beginTask("", keySet.size() * 1000);
					monitor.setTaskName(Policy.bind("SyncToHeadRevisionAction.synchronizing")); 
					
					MultiStatus status =
						new MultiStatus(
							PerforceUIPlugin.ID, 
							MultiStatus.OK, 
							"There were one or more problems perfoming 'Sync to Head Revision.'", 
							null);
							 
					for (Iterator it = keySet.iterator(); it.hasNext() && !monitor.isCanceled();)
					{
						IProgressMonitor subMonitor = Policy.subMonitorFor(monitor, 1000);
	
						P4TeamProvider provider = (P4TeamProvider) it.next();
						List list = (List) map.get(provider);
						IResource[] providerResources = 
							(IResource[]) list.toArray(new IResource[list.size()]);
						
						try
						{
							provider.sync(providerResources, IResource.DEPTH_INFINITE, subMonitor);
						}
						catch (PerforceException e)
						{
							status.merge(e.getStatus());
						}
					}
					
					if (!status.isOK())
					{
						throw new InvocationTargetException(new PerforceException(status));
					}
				}
				catch (TeamException e)
				{
					throw new InvocationTargetException(e);
				}
				finally
				{
					try 
					{
						PerforceSynchronizer.getInstance().endOperation(monitor);
					} 
					catch (PerforceException e) 
					{					
						PerforceUIPlugin.log(e.getStatus());
					}
					monitor.done();
				}
			}
		}, PROGRESS_DIALOG, false);
	}
	
	// --------------------------------------------------------------------------- Protected Methods
	
	/** @see TeamAction#isEnabled() */
	protected boolean isEnabled() 
		throws PerforceException
	{
		IResource[] resources = getSelectedResources();
		if (resources.length == 0) 
		{
			return false;
		}
			
		for (int i = 0; i < resources.length; i++) 
		{
			RepositoryProvider tempProvider = 
				RepositoryProvider.getProvider(resources[i].getProject());
			if (tempProvider == null || 
			    !tempProvider.getID().equals(PerforceCorePlugin.getTypeId()))
			{
				return false;
			}
				
			P4TeamProvider provider = (P4TeamProvider) tempProvider;
			if (provider.isCheckedOut(resources[i]))
			{
				return false;
			}
				
			if (!provider.hasRemote(resources[i])) 
			{
				return false;
			}
		}
		
		return true;
	}
}
